Features include cover that snaps over mounting flange dimples to conceal screws and concealed mounting
flange of 3-1/8″ (79 mm) O.D. diameter with 2 screw holes and 3 locking dimples; 1/8″ (3 mm) thick, type 304 stainless steel.
Cover is type 304 stainless steel with a satin finish and 22 gauge, 3-3/16″ (81 mm) diameter.
Snap Flange (1-1/2″ O.D) Peened –  Straight Grab Bar, 12″

Finish:304 Stainless Steel Satin Finish